Home / 218,918.49-302,095.77-123,419.02

Finding the Fourth Proportional to 218,918.49, 302,095.77 and 123,419.02

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Solution

The fourth proportional to 218,918.49, 302,095.77 and 123,419.02 is: 170,311.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,918.49 : 302,095.77 = 123,419.02 : x
  2. Step 2: Convert to fraction form
    218,918.49/302,095.77 = 123,419.02/x
  3. Step 3: Cross multiply
    218,918.49x = 302,095.77 × 123,419.02
  4. Step 4: Simplify right side
    218,918.49x = 37,284,363,879.55
  5. Step 5: Solve for x
    x = 37,284,363,879.55/218,918.49
  6. Step 6: Final answer
    x = 170,311.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.